... The molecular characterization of three species of the genus Chelonus was conducted for: [Ch. insularis Cresson 1865, Ch. cautus Cresson 1872 and Ch. sonorensisCameron 1887 (Hymenoptera: Braconidae) - nominal species], parasitoids of the armyworm Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) collected in maize (Zea mays L.), which are distributed in Durango and in other states of Mex ...

... The yellow fever mosquito, Aedes (Stegomyia) aegypti (Linnaeus 1762), was recorded for the first time at Durango City and Mezquital, State of Durango, Mexico. This is a new high-altitude record at northern latitude. ...

... A spider inventory from 4 oases at the xeric and mesic environments was undertaken. Ground and vegetation spiders were captured with pit fall traps and collected by sweeping and beating. Thirty four families, 130 genera and 243 species were captured which represent 63.2% of the species recorded for the Baja California Peninsula. One genus and 11 species are cited for the first time for Mexico, 13 ...

... The phylogeographic structure of some species distributed across the Baja California Peninsula has been traditionally hypothesized as resulting from vicariant events thought to have occurred between 1–3 Mya. Climatic fluctuations during the Pleistocene have also been shown to influence the distribution patterns of species, and vicariant patterns may have been erased as a consequence of population ...

... Peromyscus schmidlyi is an endemic rodent from the forested highlands of the Sierra Madre Occidental (SMO) in Mexico. Using 2 genetic markers (cytochrome-b and D-loop) we explored the possible relationship between a recently proposed division of pine–oak forests of the SMO into specific regional communities and patterns of genetic and morphometric variation in P. schmidlyi. We found no genetic str ...

... Based on examination of 705 museum specimens, including the holotype and individuals identified using molecular attributes, we characterized Schmidly's deer mouse (Peromyscus schmidlyi) using a set of morphometric and morphological characteristics. Discriminant function analysis was performed on 14 cranial attributes to find those most useful to separate species. Factorial analysis of variance and ...

... Geoducks (Panopea spp.) are recognized as one of the longest-lived and largest burrowing bivalves. Five extant species support commercial fisheries in different countries, yet their phylogenetic relationships are unclear. Phylogenetic analyses using cytochrome oxidase c subunit I, 28S, and 18S partial sequences on five Panopea spp. were performed to understand existing biogeography and to unravel ...